public class BasicConstraintsExtension extends Extension implements CertAttrSet
The basic constraints extension identifies whether the subject of the certificate is a CA and how deep a certification path may exist through that CA.
The ASN.1 syntax for this extension is: BasicConstraints ::= SEQUENCE { cA BOOLEAN DEFAULT FALSE, pathLenConstraint INTEGER (0..MAX) OPTIONAL }
CertAttrSet
,
Extension
,
Serialized FormModifier and Type | Field and Description |
---|---|
static java.lang.String |
IDENT
Identifier for this attribute, to be used with the
get, set, delete methods of Certificate, x509 type.
|
static java.lang.String |
IS_CA |
static java.lang.String |
NAME
Attribute names.
|
static java.lang.String |
PATH_LEN |
critical, extensionId, extensionValue
Constructor and Description |
---|
BasicConstraintsExtension(boolean ca,
boolean critical,
int len)
Default constructor for this object.
|
BasicConstraintsExtension(boolean ca,
int len)
Default constructor for this object.
|
BasicConstraintsExtension(java.lang.Boolean critical,
java.lang.Object value)
Create the extension from the passed DER encoded value of the same.
|
Modifier and Type | Method and Description |
---|---|
void |
decode(java.io.InputStream in)
Decode the extension from the InputStream.
|
void |
delete(java.lang.String name)
Delete the attribute value.
|
void |
encode(java.io.OutputStream out)
Encode this extension value to the output stream.
|
java.lang.Object |
get(java.lang.String name)
Get the attribute value.
|
java.util.Enumeration<java.lang.String> |
getAttributeNames()
Return an enumeration of names of attributes existing within this
attribute.
|
java.lang.String |
getName()
Return the name of this attribute.
|
void |
set(java.lang.String name,
java.lang.Object obj)
Set the attribute value.
|
java.lang.String |
toString()
Return user readable form of extension.
|
clearValue, encode, getExtensionId, getExtensionValue, isCritical, setCritical, setExtensionId, setExtensionValue
public static final java.lang.String IDENT
public static final java.lang.String NAME
public static final java.lang.String IS_CA
public static final java.lang.String PATH_LEN
public BasicConstraintsExtension(boolean ca, int len) throws java.io.IOException
ca
- true, if the subject of the Certificate is a CA.len
- specifies the depth of the certification path.java.io.IOException
public BasicConstraintsExtension(boolean ca, boolean critical, int len) throws java.io.IOException
ca
- true, if the subject of the Certificate is a CA.len
- specifies the depth of the certification path.java.io.IOException
public BasicConstraintsExtension(java.lang.Boolean critical, java.lang.Object value) throws java.io.IOException
value
- the DER encoded value of the extension.java.io.IOException
- on error.public java.lang.String toString()
toString
in interface CertAttrSet
toString
in class Extension
public void decode(java.io.InputStream in) throws java.io.IOException
decode
in interface CertAttrSet
in
- the InputStream to unmarshal the contents from.java.io.IOException
- on decoding or validity errors.public void encode(java.io.OutputStream out) throws java.io.IOException
encode
in interface CertAttrSet
out
- the DerOutputStream to encode the extension to.java.io.IOException
- on other errors.public void set(java.lang.String name, java.lang.Object obj) throws java.io.IOException
set
in interface CertAttrSet
name
- the name of the attribute (e.g. "x509.info.key")obj
- the attribute object.java.io.IOException
- on other errors.public java.lang.Object get(java.lang.String name) throws java.io.IOException
get
in interface CertAttrSet
name
- the name of the attribute to return.java.io.IOException
- on other errors.public void delete(java.lang.String name) throws java.io.IOException
delete
in interface CertAttrSet
name
- the name of the attribute to delete.java.io.IOException
- on other errors.public java.util.Enumeration<java.lang.String> getAttributeNames()
getAttributeNames
in interface CertAttrSet
public java.lang.String getName()
getName
in interface CertAttrSet